This research focuses on color centers in diamond that share quantum properties with single atoms. These systems promise a path for the realization of practical quantum devices such as nanoscale sensors, single-photon sources, and quantum memories. In particular, we explored an intriguing methodology of utilizing nanophotonic structures, such as hyperbolic metamaterials, nanoantennae, and plasmonic waveguides, to improve the color centers performance....

We will review the most prominent material systems used in quantum photonics. We will focus on material properties and their immediate consequences for the design of quantum processors and quantum communication links. In particular, we will highlight the applications of plasmonics and novel plasmonic materials for the on-chip integration of quantum photonic circuits.